traceur-build.js

#!/usr/bin/env node

var fs = require('fs');
var path = require('path');
var traceur = require('./traceur-compiler');

traceur.options.sourceMaps = true;
traceur.options.deferredFunctions = true;
traceur.options.blockBinding = true;
traceur.options.modules = true; // 'nodejs'

['a.js', , 'b.js'].forEach( function(relPath) {
  var BASE_PATH = path.resolve(__dirname);
  var fileName = relPath.substring(relPath.lastIndexOf('/') + 1, relPath.length);
  var fullPath = BASE_PATH + '/' + relPath;
  var content = fs.readFileSync(fullPath, 'utf-8');

  var ErrorReporter = traceur.util.ErrorReporter;
  var SourceFile = traceur.syntax.SourceFile;
  var Parser = traceur.syntax.Parser;
  var FromOptionsTransformer = traceur.codegeneration.FromOptionsTransformer;
  var TreeWriter = traceur.outputgeneration.TreeWriter;

  var errorReporter = new ErrorReporter();
  var sourceFile = new SourceFile(relPath, content);
  var sourceMapGenerator = new traceur.outputgeneration.SourceMapGenerator({file: relPath});
  var parser = new Parser(errorReporter, sourceFile);

  var tree = parser.parseModule();
  tree.url = relPath;
  var transformer = new FromOptionsTransformer(errorReporter);
  var transformed = transformer.transform(tree);
  var options = {sourceMapGenerator: sourceMapGenerator};
  var contentAfter = TreeWriter.write(transformed, options);
  var sourceMap = options.sourceMap;

  //contentAfter = 'module("./' + relPath.substring(0, relPath.length-3) + '", ' + contentAfter.substring(7, contentAfter.length);

  fs.writeFileSync(BASE_PATH + '/' + 'es5-' + relPath, contentAfter, 'utf8');
});